Pretest

Question 1

To show the electron configuration for an atom, what is the advantage of using an orbital notation compared to a dot structure?

Revolt · Accepted Answer

Orbital notation shows the spin of the electrons.

Question 2

Which characteristic is given by the principal quantum number?

Revolt · Accepted Answer

orbital size

Question 3

Consider the electron configuration. Open image in full-screen view Which element has this electron configuration?

Revolt · Accepted Answer

chlorine

Question 4

Which set of numbers gives the correct possible values of l for n is equal to 3 ?

Revolt · Accepted Answer

0 , 1 , 2

Question 5

The electron configuration for Helium (He) is shown. 1 s squared Which diagram shows the correct distribution of electrons in the electron shells of a helium atom?

Revolt · Accepted Answer

Image with description A gray circle is labeled 2 P 2 N. A concentric circle surrounding it has two gray dots, at the north and south positions.

Question 6

Which is the electron configuration for lithium?

Revolt · Accepted Answer

1 s squared 2 s to the 1th power

Question 7

Which is the electron configuration for zinc?

Revolt · Accepted Answer

1 s squared 2 s squared 2 p to the 6th power 3 s squared 3 p to the 6th power 4 s squared 3 d to the 10th power

Question 8

Each atom of an element has these electron configuration. 1 s squared 2 s squared 2 p to the 6th power 3 s squared 3 p to the 6th power 4 s squared 3 d to the 10th power 4 p to the 6th power 5 s squared 4 d to the 10th power 5 p to the 5th power What is the name of the element?

Revolt · Accepted Answer

iodine

Question 9

If a shell can hold a maximum of 32 electrons, what is the value of n ?

Revolt · Accepted Answer

4

Question 10

The electron configuration for magnesium is shown. 1 s squared 2 s squared 2 p to the 6th power 3 s squared Which diagram shows the correct distribution of electrons in the electron shells of a magnesium atom?

Revolt · Accepted Answer

Image with description A gray circle labeled 12 P 12 N is surrounded by three concentric circles. The innermost circle has gray dots at the north and south positions; the middle circle has eight gray dots equally spaced around the circle, with dots aligned with those in the inner circle; the outer circle has gray dots at the north and south positions.

Pretest Answers

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